Which combination of transformations will always produce congruent figures

What is the difference between the equations of a vertical and a horizontal line?

Aline is perpendicular to another line m2= (-1/m1), where m1 is the slope of the original line and m2 is the slope of the perpendicular line. which of the following equations represents the line that passes through the point (-2,1) and is perpendicular to the line below?

What is the value of x? enter your answer in the box. x =